We report the direct grafting of conjugated polymer P3HT onto semiconductor CdSe QDs via mild Pd-catalyzed Heck coupling as well as two simple yet robust routes to P3HT-CdSe quantum rod (QR) nanocomposites, dispensing with the need for ligand exchange chemistry. The charge transfer occurred at the P3HT/CdSe QD and QR interface and was confirmed by systematic UV-Vis absorption, photoluminescence (PL), and time-resolved PL studies. The anisotropic nanocomposites made by the catalyst-free click reaction exhibited a faster charge transfer from P3HT to CdSe than those produced by Heck coupling. Such nanocomposites, in which P3HT and CdSe QDs and QRs are in intimate contact, may be very promising for use in organic�inorganic hybrid solar cells.

Direct grafting of conjugated polymers onto semiconductor quantum dots and rods for hybrid organic-inorganic solar cells

244th National Meeting (2012)

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